Here is a snippet of how to disable certificate checks on PowerShell 7 and above on Windows and Linux / Debian 11.

if ($PSVersionTable.PSEdition -eq 'Core') {
	$Script:PSDefaultParameterValues = @{
        "invoke-restmethod:SkipCertificateCheck" = $true
        "invoke-webrequest:SkipCertificateCheck" = $true
	}
} else {
	Add-Type @"
		using System.Net;
		using System.Security.Cryptography.X509Certificates;
		public class TrustAllCertsPolicy : ICertificatePolicy {
			public bool CheckValidationResult(
				ServicePoint srvPoint, X509Certificate certificate,
				WebRequest request, int certificateProblem) {
				return true;
			}
		}
"@

	[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy
}